Improvement Of Body On Frame Chassis Of Bishoftu Pickup Truck For Crashworthiness During Front And Side Impact

Abstract

The Crashworthiness Of Vehicle Chassis For Crashworthiness Is A Crucial Aspect Of Vehicle Design And Safety Engineering. It Involves Enhancing The Vehicle's Ability To Protect Occupants During A Collision By Minimizing Impact Forces And Reducing The Risk Of Injury. This Is Achieved Through Advanced Engineering Techniques, Materials, And Structural Design. This Allows To Strike A Balance BetThe Crash worthiness Of Vehicle Chassis For Crashworthiness Is A Crucial Aspect Of Vehicle Design And Safety Engineering. It Involves Enhancing The Vehicle's Ability To Protect Occupants During A Collision By Minimizing Impact Forces And Reducing The Risk Of Injury. This Is Achieved Through Advanced Engineering Techniques, Materials, And Structural Design. This Allows To Strike A Balance Between Structural Strength, Energy Absorption, And Occupant Protection During A Crash. Most Researches Focus On Improving The Efficiency Of The Vehicle By Reducing The Weight Of The Chassis But It Is Necessary To Balance Crashworthiness And Weight Reduction Of The Chassis. The Main Objective Of This Thesis Work Is To Analysis Bishoftu Pickup Vehicle Chassis Structure Crashworthiness And Analyze Its Performance Using Numerical Methods. The Cad Design Done Using Solid works 18; And Finite Element Analysis Be Conducted Using Ls-Dyna Software. This Involves Modeling The Chassis Structure, Simulating Crash Analysis In Different Conditions, And Comparing The Analysis Results To Develop An Optimized Design. The Research Aims To Balance Crashworthiness And Weight Reduction Of The Chassis To Improve Passenger Vehicle Passive Safety Performance. While The Limitation Is The Lack Of Experimental Evaluation. The Results From The Analysis The Modified Model Shows Better Protection By Deforming Less As Compared To The Existing Model, It Gives Protection To The Occupant Compartment After Collision. Among The Initial Kinetic Energy, 102.2kn-Mm Of Kinetic Energy Which Is 60.8% Is Lost In The Existing Model Where As For The Modified Model; The Loss Of Kinetic Energy Is 124.3kn-Mm Which Is 74% Of The Total Energy Or The Initial Kinetic Energy During Frontal Collision. The Total Deformation By The Existing Is 56.1 Mm And The Modified Model Is40.5mm. Their Difference In Deformation Is 15.6 Mm (27.8% Improvement In Deformation).Additionally, The Total Energy Absorbed By The Modified Model Is More As Compared To The Existing Model. Their Difference In Absorption Is 21.8kn-Mm (19.5% Improvement In Energy Absorption). The Maximum Impact Force Occur On The Existing Model Is Equal To 549kn,Where as The Modified Produced 770kn, The Difference Is 221kn This Is Due To The Reinforcement Which Increases The Overall Thickness Of The Chassis. It Also Recommended That The Government And Relevant Bodies Implement Crash And Safety Regulations And Quality Evaluations For Pickups. Additionally, In Future Research, The Response Of Other Major Parts Exposed To Collision Should Be Evaluated And Study Has To Be Conducted Considering The Effect Of Rear Impact On The Chassis.ween Structural Strength, Energy Absorption, And Occupant Protection During A Crash. Most Researches Focus On Improving The Efficiency Of The Vehicle By Reducing The Weight Of The Chassis But It Is Necessary To Balance Crashworthiness And Weight Reduction Of The Chassis. The Main Objective Of This Thesis Work Is To Analysis Bishoftu Pickup Vehicle Chassis Structure Crashworthiness And Analyze Its Performance Using Numerical Methods. The Cad Design Done Using Solid works 18; And Finite Element Analysis Be Conducted Using Ls-Dyna Software. This Involves Modeling The Chassis Structure, Simulating Crash Analysis In Different Conditions, And Comparing The Analysis Results To Develop An Optimized Design. The Research Aims To Balance Crashworthiness And Weight Reduction Of The Chassis To Improve Passenger Vehicle Passive Safety Performance. While The Limitation Is The Lack Of Experimental Evaluation. The Results From The Analysis The Modified Model Shows Better Protection By Deforming Less As Compared To The Existing Model, It Gives Protection To The Occupant Compartment After Collision. Among The Initial Kinetic Energy, 102.2kn-Mm Of Kinetic Energy Which Is 60.8% Is Lost In The Existing Model Where As For The Modified Model; The Loss Of Kinetic Energy Is 124.3kn-Mm Which Is 74% Of The Total Energy Or The Initial Kinetic Energy During Frontal Collision. The Total Deformation By The Existing Is 56.1 Mm And The Modified Model Is40.5mm. Their Difference In Deformation Is 15.6 Mm (27.8% Improvement In Deformation).Additionally, The Total Energy Absorbed By The Modified Model Is More As Compared To The Existing Model. Their Difference In Absorption Is 21.8kn-Mm (19.5% Improvement In Energy Absorption). The Maximum Impact Force Occur On The Existing Model Is Equal To 549kn,Whereas The Modified Produced 770kn, The Difference Is 221kn This Is Due To The Reinforcement Which Increases The Overall Thickness Of The Chassis. It Also Recommended That The Government And Relevant Bodies Implement Crash And Safety Regulations And Quality Evaluations For Pickups. Additionally, In Future Research, The Response Of Other Major Parts Exposed To Collision Should Be Evaluated And Study Has To Be Conducted Considering The Effect Of Rear Impact On The Chassis.